Talk:Bioblast alert 2015: Difference between revisions

Revision as of 12:46, 20 November 2011

Bioblast alert - in preparation

Bioblast alert 2011(03): 2011-11-24

O2k-Publications: Fluorometry combined with high-resolution respirometry - Light guide inserted into the chamber through a black PEEK stopper^[1], or optical probe operated through the O2k-glass window^[2].

↑ Anderson EJ, Rodriguez E, Anderson CA, Thayne K, Chitwood WR, Kypson AP (2011) Increased propensity for cell death in diabetic human heart is mediated by mitochondrial-dependent pathways. Am. J. Physiol. Heart Circ. Physiol. 300: H118-124.
↑ Hickey AJ, Renshaw GM, Speers-Roesch B, Richards JG, Wang Y, Farrell AP, Brauner CJ (2011) A radical approach to beating hypoxia: depressed free radical release from heart fibres of the hypoxia-tolerant epaulette shark (Hemiscyllum ocellatum). J. Comp. Physiol. B. [Epub ahead of print]

High-resolution terminology - term of the week: Fluorometry versus fluorimetry, >>>new List of fluorimetry terms.

MiPNet Laboratory of the week - Auckland, New Zealand: Anthony J Hickey: (edit text: 6 O2k, guest lecturer at IOC66, joint project (Marsden), guest tutor at IOC59).

Bioblast alert ## to select

O2k-Publication: Protocols for HRR: from intact cells to permeabilized muscle fibres

Pesta D, Gnaiger E (2012) High-resolution respirometry. OXPHOS protocols for human cells and permeabilized fibres from small biopisies of human muscle. Methods Mol. Biol. 810: 25-58.

Scientific service: Oxygen regime for permeabilized fibres - reoxygenations in MiR06.

Bioblast alert ### to select

O2k-Publication: Efficiency, basal respiration, and oxygen kinetics in human muscle or Mitochondrial efficiency and P/O flux ratios: new perspectives in mitochondrial physiology (see Journal club);

Larsen FJ, Schiffer TA, Borniquel S, Sahlin K, Ekblom B, Lundberg JO, Weitzberg E (2011) Dietary inorganic nitrate improves mitochondrial efficiency in humans. Cell Metab. 13: 149-159.

Larsen FJ, Schiffer TA, Sahlin K, Ekblom B, Weitzberg E, Lundberg JO (2011) Mitochondrial oxygen affinity predicts basal metabolic rate in humans. FASEB J. 25: 2843-2852.

Before alert, ask to join as MiPNet Reference Lab, and present new MiPNet Reference Lab

Term: efficiency versus P/O ratio

Bioblast alert - concept

Here is a brief summary on the concept of Bioblast alert.

Some of the following topics (not more than four per alert) will be selected for a Bioblast alert.

MiPNet O2k-Publications

Topic: O2-kinetics; coupling; pathology; ...
Preparation: Homogenate/isolated mitochondria; intact/permeabilized cells; permeabilized fibre/in vivo
Protocols

MiPNet Laboratories of the World

Contact the MiPNet laboratories: show link on the wiki, ask for updates on group, references, website, perhaps major projects (HypoxiaNet), perhaps add pictures, perhaps keywords/short description. Circular: link to presented lab / special occasion (e.g. publication; conference presentation; new member; PhD thesis, ..

High-resolution terminology

high-resolution terminology - matching measurement at high-resolution. Term of the week: Basal respiration
Define – Measure: terminology and experimental approach
Define – Clarify: consider discrepancies, resolve problems

MiPevents

Conferences and Workshops

Bioblast

What is new or updated on the website: Lists (chemicals, protocols, scientific service, ..)
Projects in mitochondrial science (COST HypoxiaNet; Framework programs; ..)
Links on the Bioblast website; networking in mitochondrial science, presentation of: MIG List, Mitochondrion journal and website; Mitochondrial Societies
MitoCom News

Bioblast editors

A Bioblast editor may select an O2k-Publication (or a small number of related publications), particularly from a MiPNet Reference Laboratory, may get in contact with the particular reference lab, update info on the lab, and ‘present’ the lab in the alert. A term may be selected (perhaps related to the publication), updated, discussed in our group, and then presented in the alert. An editor does not even have to present an entire alert, but may prepare individual ‘points’, which then can be added to a particular alert. As Bioblast is updated, the updated ‘article’ (term, publication etc) can be added to the prepared points for a future alert.

Draft letter to MiPNet Reference Laboratories

Dear colleague:

As you may have seen from previous circulars, we try to draw attention to some topics on the Bioblast wiki through ‘Bioblast alert’ - http://www.bioblast.at/index.php/Bioblast_alert. What do you think about such regular alerts?

In a next issue, we would like to present your lab as the ‘MiPNet Laboratory of the week’. If you agree, could you do the following:

Check your lab website on the Bioblast wiki: http://www.bioblast.at/index.php/MiPNet_Reference_Laboratories

1. Is your address and Email correct?

2. Is your ‘Team’ listed correctly? (perhaps there are other O2k-users in your lab, which may be added as contacts).

3. Are your O2k-Publications complete on the list?

4. Do you want to add any information on MiPNet Keywords and in the free text below the list of publications? (Link to your website; etc.)

MiPNet Laboratory of the week: Do you want to add any information for ‘Bioblast alert’?

Looking forward to your comments.

[1] Anderson EJ, Rodriguez E, Anderson CA, Thayne K, Chitwood WR, Kypson AP (2011) Increased propensity for cell death in diabetic human heart is mediated by mitochondrial-dependent pathways. Am. J. Physiol. Heart Circ. Physiol. 300: H118-124.

[2] Hickey AJ, Renshaw GM, Speers-Roesch B, Richards JG, Wang Y, Farrell AP, Brauner CJ (2011) A radical approach to beating hypoxia: depressed free radical release from heart fibres of the hypoxia-tolerant epaulette shark (Hemiscyllum ocellatum). J. Comp. Physiol. B. [Epub ahead of print]

[1]

[2]

@@ Line 5: / Line 5: @@
 === Bioblast alert 2011(03): 2011-11-24 ===
+[[File:Bioblast alert.jpg|120px|left]]
 *O2k-Publications: '''Fluorometry combined with high-resolution respirometry''' - Light guide inserted into the chamber through a black PEEK stopper<ref>[[Anderson 2011 Am. J. Physiol. Heart Circ. Physiol.|Anderson EJ, Rodriguez E, Anderson CA, Thayne K, Chitwood WR, Kypson AP (2011) Increased propensity for cell death in diabetic human heart is mediated by mitochondrial-dependent pathways. Am. J. Physiol. Heart Circ. Physiol. 300: H118-124.]]</ref>, or optical probe operated through the O2k-glass window<ref>[[Hickey 2011 J. Comp. Physiol. B.|Hickey AJ, Renshaw GM, Speers-Roesch B, Richards JG, Wang Y, Farrell AP, Brauner CJ (2011) A radical approach to beating hypoxia: depressed free radical release from heart fibres of the hypoxia-tolerant epaulette shark (''Hemiscyllum ocellatum''). J. Comp. Physiol. B. [Epub ahead of print] ]]</ref>.
@@ Line 12: / Line 13: @@
 *MiPNet Laboratory of the week - '''[[NZ Auckland Hickey AJ|Auckland, New Zealand: Anthony J Hickey]]''': (edit text: 6 O2k, guest lecturer at IOC66, joint project (Marsden), guest tutor at IOC59).
-=== Bioblast alert #### to select ===
-*O2k-Publication: '''Heart failure and mitochondrial dysfunction'''. Increased OXPHOS capacity after cold preservation of the human heart – a paradox resolved by a dyscoupling mechanism.
-::[[Lemieux 2011 Int. J. Biochem. Cell Biol.|Lemieux H, Semsroth S, Antretter H, Hoefer D, Gnaiger E (2011) Mitochondrial respiratory control and early defects of oxidative phosphorylation in the failing human heart. Int. J. Biochem. Cell Biol. 43: 1729–1738]]. >>> [[Talk:Lemieux 2011 Int. J. Biochem. Cell Biol.|Discussion: Complementary results on the PGC-1a pathway]].
-*'''[[Scientific service]]''': '''[[Tissue storage]]''' on ice is possible for limited periods of time (several hours) with preservation of mitochondrial respiratory function, as evaluated with [[SUIT protocol]]s.
-*Term of the week: '''[[Uncoupled]], [[non-coupled]], [[dyscoupled]]''' - a hallmark of high-resolution respirometry is a matching '''high-resolution terminology'''.
-::[[Talk:Uncoupled respiration|Evaluate an example of low-resolution terminology]]: '''''[[Dyscoupled respiration|Uncoupling]]''' was studied in stressed cells by measurement of coupled respiration, evaluation of '''[[LEAK|uncoupled]]''' respiration after inhibition with oligomycin, and FCCP titration to quantify '''[[non-coupled|uncoupled]]''' respiration''.
@@ Line 29: / Line 19: @@
 *O2k-Publication: '''Protocols for HRR: from intact cells to permeabilized muscle fibres'''
 ::[[Pesta 2012 Methods Mol. Biol.|Pesta D, Gnaiger E (2012) High-resolution respirometry. OXPHOS protocols for human cells and permeabilized fibres from small biopisies of human muscle. Methods Mol. Biol. 810: 25-58.]]
+*Scientific service: Oxygen regime for permeabilized fibres - reoxygenations in MiR06.
 === Bioblast alert ### to select ===